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Type: Artigo de periódico
Title: Preparative droplet counter-current chromatography for the separation of the new nor-seco-triterpene and pentacyclic triterpenoids from Qualea parviflora
Author: Nasser, ALM
Mazzolin, LP
Hiruma-Lima, CA
Santos, LS
Eberlin, MN
Brito, ARMD
Vilegas, W
Abstract: The methanolic extract of the bark of the medicinal plant Qualea parviflora (Vochysiaceae) contains new nor-seco-triterpene and pentacyclic triterpenoids. They were separated in a preparative scale using droplet counter-current chromatography. The optimum solvent used was composed of a mixture of CHCl3/MeOH/H2O (43:37:20, v/v) in the descending mode and led to a successful separation of the new compound 28-nor-17, 22-seco-2 alpha, 3 beta, 19, 22, 23-pentahydroxy-Delta(12)-olecinane, besides the known triterpenoids bellericagenin B, bellericaside B and arjunglucoside I. Identification was performed by ESI-MS, H-1 NMR and C-13 NMR analyses.
Subject: thin layer chromatography
droplet counter-current chromatography
nor-seco-triterpene and pentacyclic triterpenoids
Qualea parviflora bark
Country: Alemanha
Editor: Vieweg
Rights: fechado
Identifier DOI: 10.1365/s10337-006-0087-4
Date Issue: 2006
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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